摘要:
A method of measuring flare in an optical lithographic system utilizes an exposure mask with first and second discrete opaque features each having rotational symmetry of order greater than four and of different respective areas. The exposure mask is positioned in the lithographic system such that actinic radiation emitted by the lithographic system illuminates the sensitive surface of an exposure target through the exposure mask. The extent to which regions of the sensitive surface that are within the geometric image of a feature of the exposure mask are exposed to actinic radiation during due to flare is measured.
摘要:
Flare of an imaging system is measured using resist by employing the imaging system to directly expose a first part of the resist at an image plane of the imaging system to a first dose of radiation and to indirectly expose a second part of the resist as a result of flare. The imaging system exposes the second part of the resist to a second dose of radiation. Flare of the imaging system is determined from a pattern that is formed in the second part of the resist.
摘要:
A method of measuring flare in an optical lithographic system utilizes an exposure mask with first and second discrete opaque features each having rotational symmetry of order greater than four and of different respective areas. The exposure mask is positioned in the lithographic system such that actinic radiation emitted by the lithographic system illuminates the sensitive surface of an exposure target through the exposure mask. The extent to which regions of the sensitive surface that are within the geometric image of a feature of the exposure mask are exposed to actinic radiation during due to flare is measured.
摘要:
Flare of an imaging system is measured using resist by employing the imaging system to directly expose a first part of the resist at an image plane of the imaging system to a first dose of radiation and to indirectly expose a second part of the resist as a result of flare. The imaging system exposes the second part of the resist to a second dose of radiation. Flare of the imaging system is determined from a pattern that is formed in the second part of the resist.
摘要:
Pupil intensity distribution of an imaging system is measured by exposing an image field of a radiation detector with a bright feature, positioning the detector at a distance away from the image plane, and exposing the image field of the detector with a bright feature, resulting in a cumulative exposure of the image field of the detector from the two exposures. A characteristic of a spatial pattern in the cumulative exposure of the image field of the detector is then determined.
摘要:
Examples of methods and systems for providing calibration for eye gesture recognition are described. In some examples, calibration can be executed via a head-mountable device. A method for calibration of a system may account for changes in orientation of the head-mountable device, update recognition of the eye gestures, or increase efficiency of the system, for example. The head-mountable device may be configured to receive signals indicative of eye gestures from an eye gesture-detection system and in response to receiving a second command confirming that the signal is indicative of an eye gesture command, to make adjustments to the eye gesture recognition system and/or the reference signals. The head-mountable device may calibrate an eye gesture recognition system via implicit or explicit calibration, for example.
摘要:
This disclosure relates to proximity sensing for wink detection. An illustrative method includes receiving data from a receiver portion of a proximity sensor. The receiver portion is disposed at a side section of a head-mountable device (HMD). When a wearer wears the HMD, the receiver portion is arranged to receive light reflected from an eye area of the wearer, the proximity sensor detects a movement of the eye area, and the data represents the movement. The method includes determining that the data corresponds to a wink gesture. The method also includes selecting a computing action to perform, based on the wink gesture. The method further includes performing the computing action.
摘要:
The present invention discloses a method, system and device for implementing identity identifier and location separation, to solve the technical problem that the change of the host IP address results in the connection interrupt of the terminal in the process of moving. By separating and mapping the identity identifier and location identifier, the present invention eliminates the network limitation because of the IP addresses with dual functions of the identity identifier and location identifier; the terminal host identity identifier and the terminal location identifier are mapped, the IP address is used for route only, and the host identity is denoted by the host identifier. Consequently, when the host address is changed because of moving or multi-homing and so on, the route is changed, the host identifier still keeps unchanged, and the network application and connection are not interrupted. Therefore, the continuity of the session can be implemented, the mobility, the multi-homing, the dynamic reallocation of IP addresses, and the inter-access among the different network area can be implemented effectively.
摘要:
Methods and systems are described for determining eye position and/or for determining eye movement based on glints. An exemplary computer-implemented method involves: (a) causing an imaging device that is attached to a head-mountable display (HMD) to record a video of the eye; (b) while the video of the eye is being recorded, causing a plurality of light sources that are attached to the HMD and generally directed towards the eye to switch on and off according to a predetermined pattern, wherein the predetermined pattern is such that at least two of the light sources are switched on at any given time while the video of the eye is being recorded; (c) analyzing the video of the eye to detect controlled glints that correspond to the plurality of light sources; and (d) determining a measure of eye position based on the controlled glints.